Jáchym,
Thanks for atleast looking into it.
Let's start off with a block (if possible).
I know there's alot of information on each day's page. The images are set up in tabs (categorical, tornado, hail, wind). I'm not sure if the tabs can be used in a block, if so, great. If not atleast use Categorical, and leave just the image with possible link to the plugin.
Regarding the plugin...
Design it similarly to the SPC page. The first 3 days are similar in setup with days 4-8 as one page. Each page would have tabs to show each categories image, like on the SPC site. Days 4-8 would be only tabbed
The text for each day's graphics would be set below the tabbed graphics. Days
Edit: After going back through the messages, I realized you need more information, links and such.
To give you perspective of how some other sites have it designed, I linked to my old site template, which is still active.
[size=78%]http://lightningweather.com/sl/index.php?p=ws_spc_main&lang=en#data-area[/size]That may aid in how to set it up...I hope.